Download the asterisk cd for your system into tmp folder. I used centos 64 bit

Download the tar version from our servers (we only have this version, but you can use the method for any version. The secret is you download the iso and then use winrar or other programs to extract in. Next thing is you compress it to a .tar file using 7-zip utility and upload it to your server)

First boot will not come up automatically since you do not have a mounted CD. So you need to run this command

# /etc/rc3.d/S66elastix-firstboot start

The system will prompt you for two important passwords with confirmation. Make sure your passwords are strong but remember-able. Make sure you reboot again before you can login to your server but if you will need to use a domain instead of IP address then do the following